So I took the Deore crank off my wife's Pitch and installed a new SLX crank, but now I'm having trouble getting it to shift properly. The old Deore crank had one spacer installed on the drive side, so that's what I did this time, and that's no bueno. I can't get the derailleur to throw the chain far enough to ramp up on to the middle chain ring. Anyone else have this set up? Am I missing something?